Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/80-19 | 300/80-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.02 (762.6) | 37.9 (962.6) | 7.87 (200) 26.2% |
| Width inches (mm) | 6.89 (175) | 11.81 (300) | 4.92 (125) 71.4% |
| Circum. inches (mm) | 94.32 (2395.78) | 119.06 (3024.1) | 24.74 (628.32) 26.2% |
| Sidewall Height inches (mm) | 5.51 (140) | 9.45 (240) | 3.94 (100) 71.4% |
| Revolutions per mile (km) | 671.74 (417.4) | 532.17 (330.68) | -139.57 (-86.72) -20.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.25 mph (40.63 km/h) |
| 25 mph (40.23 km/h) | 31.56 mph (50.79 km/h) |
| 30 mph (48.28 km/h) | 37.87 mph (60.94 km/h) |
| 35 mph (56.33 km/h) | 44.18 mph (71.1 km/h) |
| 40 mph (64.37 km/h) | 50.49 mph (81.26 km/h) |
| 45 mph (72.42 km/h) | 56.8 mph (91.41 km/h) |
| 50 mph (80.47 km/h) | 63.11 mph (101.57 km/h) |
| 55 mph (88.51 km/h) | 69.42 mph (111.73 km/h) |
| 60 mph (96.56 km/h) | 75.74 mph (121.88 km/h) |
| 65 mph (104.61 km/h) | 82.05 mph (132.04 km/h) |
| 70 mph (112.65 km/h) | 88.36 mph (142.2 km/h) |
| 75 mph (120.7 km/h) | 94.67 mph (152.36 km/h) |
| 80 mph (128.75 km/h) | 100.98 mph (162.51 km/h) |
| 85 mph (136.79 km/h) | 107.29 mph (172.67 km/h) |
| 90 mph (144.84 km/h) | 113.6 mph (182.83 km/h) |
| 95 mph (152.89 km/h) | 119.91 mph (192.98 km/h) |
| 100 mph (160.93 km/h) | 126.23 mph (203.14 km/h) |
| 2.35 | 2.73 | 2.94 | 3.07 | 3.21 | 3.31 | 3.42 | 3.55 | 3.73 | 3.91 | 4.11 | 4.27 | 4.56 | 4.88 | 5.13 | 5.29 | 5.38 | 5.71 | 6.17 | 7.17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1354 | 1573 | 1694 | 1769 | 1850 | 1908 | 1971 | 2046 | 2150 | 2253 | 2369 | 2461 | 2628 | 2812 | 2956 | 3049 | 3100 | 3291 | 3556 | 4132 |
Better Fuel Economy Factory Ratios Increased Power
